RE: regexp/python
- From: "Ken Perry" <whistler@xxxxxxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Sun, 14 Feb 2010 17:13:45 -0500
I am sure there is an easier way to do this for example using an xml parser
but here is one way you could pull it off with regular expressions
M=re.search("<save>.*</save>",myStr)
newStr=myStr[m.start()+6:m.end()-7]
This will return the save part in newStr. Not that I add and subtract the
length of the tag in the start and end because those are the positions of
the match and include the tags.
Ken
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Hall
Sent: Sunday, February 14, 2010 3:34 PM
To: Blind Programming List
Subject: regexp/python
Hi all,
I am trying to write a regexp in python to look at a file (as a big string)
and erase all text before a certain word, then erase all text after a second
keyword. This sentence:
All this should be deleted <save>except for this</save>, so delete it!
would be turned into
except for this
I am not sure how to go about this, though. If I were using a batch-like
syntax, my string to match might be
*<save>
and then
</save>*
but the star character is used to repeat a regexp op, not as a wildcard in
the text itself. Am I just misunderstanding something here? Thanks.
Have a great day,
Alex (msg sent from PC)
Email: mehgcap@xxxxxxxxx
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